关键时期土壤含水量对雷竹林竹笋产量和品质的影响

the Effect of Soil Moisture Content on the Yield and Ouality of Bamboo Shoots in Phyllostachys violascens Forest During the Critical Growth Period

摘要:

为探讨雷竹生长关键物候期，土壤含水量对雷竹林竹笋产量和品质的影响。以崇阳县的覆盖雷竹林分为试验对象，利用土壤温湿度仪监测 0～30cm 土层土壤体积含水量（VWC）及温度变化情况，根据雷竹生长关键期土壤体积含水量的不同，设计了 3 个水分梯度处理和 1 个对照，分析土壤含水量与雷竹笋产量和品质的关系。结果表明：有效的水分管理可以显著提高雷竹笋的产量和品质，当土壤体积含水量（VWC）为 18.5%～21.5% 处理时雷竹笋产量达到最高，为 21250kg?hm?2，此时雷竹笋的适口性也更好。

Abstract:

To explore the effect of soil moisture content on the yield and quality of bamboo shoots in Phyllostachys violascens forest during the critical growth period of P. violascens, taking the cover P. violascens forest in Chongyang as experimental material, use soil hygrothermograph to record soil volumetric water content（VWC）and temperature changes in the 0～30cm soil layer, and according to the difference of soil volumetric water content in the critical growth period of P. violascens, three moisture gradient treatments and one control were designed to analyze the relationship between soil moisture content and the yield and quality of P. violascens shoots. Effective water management can significantly improve the yield and quality of P. violascens shoots, the highest P. violascens shoots yield of 21,250 kg·hm?2 was achieved when the soil volumetric water content（VWC）ranged from 18.5 to 21.5%, and the palatability of P. violascens shoots was better as well.